Biscuit-cutting machine



Sept. 16 19 24. V c. B. PERTUISET BISCUIT (IIUTTING MACHINE Filed April15 1920 2 Shee ts-Sheet 1' 10- I L y' Sept. 16 1924. I 1,508,935

G. B. PERTUISET BISCUIT CUTTING MACHINE Filed April 15 1920 2Sheets-Shoot 2 Patented Sept. 165, 1924.

GEORGES BERTHELEMY PERTUISET, F GENEVA, SWITZERLAND.

BISCUIT-CUTTING MACHINE.

Application filed April 15, 1920. Serial No. 374,198.

(GRANTED UNDER THE PRQVISIONS OF THE ACT 0F MARCH 3, 1921, 41- STAT. 1.,1313.)

T 0 all whom it may concern.

Be it known that I, Gnoncns BARTHELEMY Pnn'rursn'r, citizen ofSwitzerland, residing at Geneva, Canton of Geneva, in the Confederationof Switzerland, have invented certain new and useful Improvements inBiscuit-Cutting Machines (for which I filed an application for LettersPatent in Switzerland on April 7, 1919, Patent No. 85,385), of which thefollowing is a specification.

The object of the present invention is the provision of a biscuitcutting machine, in which a knife mounted slidably within verticalguides is attached to a motor driven crankshaft, so as to have avertical reciprocating movement; an eccentric being mounted on the sameshaft and attached by means of a connecting rod to a pawl and ratchetgear, which operates a ratchet wheel for moving a slide in alongitudinal direction with regard to the machine, said slide holdingthe biscuits and presenting the same to the knife.

The annexed drawing represents as an example one working form of thisinvention.

Fig. 1 is a side elevation.

Fig. 2 a top view, partly in section.

Fig. 3 is an end view thereof.

Figs. 4, 5 and 6 represent in horizontal projections and on a largerscale than in Figs. 1 to 3 three different forms of a knife.

Fig. 7, likewise on a larger scale, is a partial perspective view of adetail.

The machine as shown in Figs. 1 to 3 and 7 consists of a bedplate asupported by feet a. and carrying a frame a secured thereto. Said frameis provided with two vertical guides a for a knife I). At the upper partof the frame a there is mounted within bearing a a crank shaft 0attached by means of a connecting rod 0 to the top end of the knife Z).A pinion c is keyed to the one end of shaft 0 and meshes with a pinion 0mounted on the same shaft with a pulley c operated from a motor notshown in the drawing. The crank shaft 0 carries at its other end a disc0 with a crank pin 0 the eccentricity of which pin may be regulated bymeans of a screw 0 provided with a milled knob for handling. The

crank pin 0 is connected by means of a rod d to an oscillating leverfitted with pawls (1 d which operate a ratchet wheel d keyed to ajournaled shaft 6, supported by the bed plate. Keyed to this shaft thereis a pinion f which meshes with a rack f fixed to the under side of aslide 9 for imparting to this slide a.longitudinalmovement relatively tothe machine. The pinion is mounted on a hub adapted to slide on theshaft (2 for a distance controlledby means of a pin f fast to said shaftand engaginga slot f provided within one of the extended hubs of thepinion f, the other extended hub of said pinion being attached by meansof a forked lever f to a rod provided with a handle 7 suitably arrangedon the bedplate so as to be easily moved by an operator. A catch 71having a bevel edge and connected to a rod 71. fitted with a spring k isadapted to bear frictionally against the adjacent hub on which thepinionf is mounted, thereby tending to maintain the said pinion inthatposition in which it is not in mesh with the rack, thus assisting inreleasing the pinion when it is desired to stop the slide.

A slide 5/ carriesanother plate g made for instance of sheet metal andwhich is removably connected thereto. A bracket 2 (Fig. 7 is secured tothe bedplate a and lies above said two plates 9 andeg". After .I

being kneaded the dough which is to be cut into slices is placed ingrooves in this bracket 2'. This bracket 2' is provided at its fore endwith a cleft 2' formingan aperture for receiving the knife blade 5. Theelongated pieces j of kneaded dough are placed on said bracket 2' andwithinthe grooves or hollows 2" which may be provided with flutings. Thedough is held in place by rollers 70 which are journ'aled at the end of1 arms 0 and pressed downwards by means of springs 70 The pieces ofdoughy are pushed forwardly by means of pistons or plungers. Thesepistons or plungers Z are each mounted on a rod Z which passes throughand is journaled in a bearing provided therefor in a support Z. Thesupport Z is connected to and moves with the plate 9. On each rod Z andextending between its plunger or piston Z and the support Z there is aspring Z by which the plunger is caused to bear yieldingly against thedough j in moving the same along in the groove in the bracket 2'. Thepistons Z are made to fit in the grooves in the bracket 2' and thesupport Z is adapted to bridge the bracket 2' so that the latter maypass through the same asthe plate and dough advance;

The working of the machine is as follows: The movable plate 9 is in itsstarting position and in order to prevent any an ticipated starting, thepinion f is thrown out of gear with the rack 7. The bracket 2'- providedwith longitudinal hollows i corresponding to the forms of the pieces ofkneaded dough which are to be cut up is arranged on the bed plate a insuch a way that the cleft i at its fore part is within the plane whereinthe knife reciprocates, and one or more pieces of the dough dependingupon the number of hollows i in said bracket 2' are placed therein, andkept in position by the rollers k and the pistons Z. By means of thescrew 0 the eccentricity of the crank pin 0 of disc 0 is regulated andthis regulation controls the extent of each movement of the ratchetwheel d and pinion f and consequently the advance of the rack f for eachalternating movement of the knife blade 7), thus fixing the thickness ofthe slices of dough to be cut off. After this regulation, the pinion fis thrown into gear with the rack by means of the handle f and themachine is started by means of the pulley o This latter when turningwill move shaft 0 by means of the gears 0 0 which shaft through the rod0 imparts to the knife I) an alternating movement upwards and downwards.This movement takes place at a time when the slide 5 is stationary sothat the pieces of dough will be cut into slices of the desiredthickness, whereupon the slices will be dropped a on the fore part ofplate 9 of sheet metal where the slices may be collected for the1,5os,ees

purpose of baking the same in the oven; fhe plate 9 as hereinbeforedescribed is remov able from the slide 9 and hence after the biscuitsare cut and delivered thereto may be removed and transferred with thehis cuits thereon to an oven for baking the biscuits. p

The shape of. these pieces of dough may be varied and be different fromthat shown in the drawing, therefore also the bracket '5 is madeinterchangeable and the hollows may be shaped at will. Also thehorizontal projection of the knife may be in any form to suit the shapewhich it is desired to give to the faces of the biscuits.

The Figures 4L, and 6 show three Work: ing forms of the'knife Z) inhorizontal pro jection.

I claim as my invention:

In a biscuit cutting machine, a frame, a dough holder formed in theframe and having slots therein for receiving the dough, a reciprocatingslide, plungers yieldingly mounted on the said slide and lying withinthe said recesses in the dough holders to move the dough when the slideis moved, a knife, a crank shaft by which the knife is operated, anauxiliary shaft, means for operating the auxiliary shaft from the saidcrank shaft, a gear slidably mounted on the auxiliary shaft, a rack onthe said reciprocating slide, and means for sliding the said gear intoand out of mesh with the said rack.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGES BARTHELEMY PERTUISET.

i'Vitnesses:

Dr. Ron. DE Wnn'rimrnnne, H, H. VICK.

